Boa tarde! Tudo bem? Aqui está o meu projeto pronto para esta aula.
const form = document.getElementById('novoItem');
const list = document.getElementById('lista');
const items = JSON.parse(localStorage.getItem('items')) || [];
items.forEach((element) => {
    createElement(element);
})
form.addEventListener('submit', (event) => {
    event.preventDefault();
    const name = event.target.elements['nome'];
    const amount = event.target.elements['quantidade'];
    const currentItem = {
        'name': name.value, 'amount': amount.value
    }
    createElement(currentItem);
    items.push(currentItem);
    localStorage.setItem('items', JSON.stringify(items));
    name.value = '';
    amount.value = '';
})
function createElement(item) {
    const newItem = document.createElement('li');
    newItem.classList.add('item');
    const itemNumber = document.createElement('strong');
    itemNumber.innerHTML = item.amount;
    newItem.appendChild(itemNumber);
    newItem.innerHTML += item.name;
    list.appendChild(newItem);
}
 
            